# STC SA2112SW-AC

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Aviation Standards National Field Office, United States
- Description: Installation of Bendix Model 20A Microwave Landing System modified for flight inspection interface into the flight inspection console, autopilot, pilot and copilot flight directors.
- Applied: August 24, 1985
- Status date: November 26, 1985
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A2WE](https://openairdocs.org/tcds/A2WE)
- Certificate PDF: https://openairdocs.org/files/sha256/9c/2b/9c2be971c27f790b2045d9227957de036ba6d097f7536671dff9ddcebfc05374
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/E5C13F53D9E9E30C862576870058FF2A.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA2112SW-AC

## ADs that name it (0)

None.

## Approved models (1)

- Sabreliner Corporation NA-265-40 ([TCDS A2WE](https://openairdocs.org/tcds/A2WE))

## What the certificate says

This is OCR from the scanned FAA certificate. OCR can misread letters and numbers.

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SA2112SW-AC This certificate issued to: Aviation Standards National Field Office 6500 S. MacArthur Blvd.

Oklahoma City, OK 73125 Purt 4b of the CiVil Air Regulations.

Original Product - Type Certificate Number: A2WE Make: Rockwell International Model: NA-265-40 Description of Type Design Change: Installation of Bendix Model 20A Microwave Landing System modified for flight inspection interface into the flight inspection console, autopilot, pilot and copilot flight directors.

Limitations and Conditions: An FAA Approved Flight Manual Supplement dated November 26, 1985, for the Model 20A Microwave Landing System is required.

Due to the unique equipment installed and overall aircraft configuration, duplication of this installation in other aircraft is not considered feasible. Therefore, this approval is limited to the installation made in Rockwell International Sabreliner Model NA-265-40, Serial Number 282-88.

Date of Application: August 24, 1985 Tute missued:

Date of Issuance: November 26, 1985 Date Amended:

ANTATION Harvey (Signature) STRATION An Engineering perine Coordinator, AVN-340 (Title)

47.

## Every issue (1)

- November 26, 1985: Issued, Current. [certificate](https://openairdocs.org/files/sha256/9c/2b/9c2be971c27f790b2045d9227957de036ba6d097f7536671dff9ddcebfc05374)

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